A Collection of Sacred Music, Selected and Arranged From the Best European and American Authors; Together With Numerous Original Compositions

by Benjamin Franklin Baker and Isaac Baker Woodbury

Excerpt

Melody treats of the pitch of tones. The pitch of a tone is' elevated or depressed in proportion to the increase or decrease of the number of vibrations in any given time. A scale is a succession of eight tones, occurring at irregular intervals from any one tone to another of twice its number of vibrations. For example, if a. Tone be heard, the vibrations of which number thirty per second, the last tone of the same scale would number sixty.